Question

11. When the object is moving at a constant velocily on the rough surface,
a. Net force on the object is zero
b. No force acts on the object
c. Only external force acts on the object
d. Only kinetic friction acts on the object
particle moving with constant speed is
4​

Answer 1

Answer:

c

Explanation:

just think practically

Answer 2

Answer:

d

Explanation:

as you said "on the rough".. we all know it has friction.....